.site_main {
  font-size: 0.875rem;
  font-weight: 600;
}
@media screen and (min-width: 600px) {
  .site_main {
    font-size: 0.9375rem;
  }
}
@media screen and (min-width: 960px) {
  .site_main {
    font-size: 1rem;
  }
}

.page_header {
  padding-block: initial;
}
@media screen and (min-width: 600px) {
  .page_header {
    padding-block: 0px 30px;
  }
}
@media screen and (min-width: 960px) {
  .page_header {
    padding-block: 0px 36px;
  }
}

.breadcrumb {
  margin-top: 20px;
}
@media screen and (min-width: 600px) {
  .breadcrumb {
    margin-top: 28px;
  }
}
@media screen and (min-width: 960px) {
  .breadcrumb {
    margin-top: 38px;
  }
}

.key_visual {
  padding-inline: 20px;
  background-color: #FAFAFA;
  padding-top: 35px;
  padding-bottom: 25px;
}
@media screen and (min-width: 400px) {
  .key_visual {
    padding-inline: 30px;
  }
}
@media screen and (min-width: 600px) {
  .key_visual {
    padding-inline: 50px;
  }
}
@media screen and (min-width: 960px) {
  .key_visual {
    padding-inline: 70px;
  }
}
@media screen and (min-width: 1440px) {
  .key_visual {
    padding-inline: 130px;
  }
}
@media screen and (min-width: 768px) {
  .key_visual {
    padding-block: 24px;
  }
}
@media screen and (min-width: 1280px) {
  .key_visual {
    padding-inline: 70px;
  }
}

.key_visual__inner {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
}
@media screen and (min-width: 768px) {
  .key_visual__inner {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
        -ms-flex-direction: row;
            flex-direction: row;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    max-width: 1270px;
    margin: 0px auto;
    -webkit-column-gap: 40px;
       -moz-column-gap: 40px;
            column-gap: 40px;
  }
}
@media screen and (min-width: 1280px) {
  .key_visual__inner {
    -webkit-column-gap: 74px;
       -moz-column-gap: 74px;
            column-gap: 74px;
  }
}

.key_visual__primary {
  display: contents;
}
@media screen and (min-width: 768px) {
  .key_visual__primary {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    row-gap: 20px;
  }
}
@media screen and (min-width: 960px) {
  .key_visual__primary {
    row-gap: 0px;
  }
}
@media screen and (min-width: 1280px) {
  .key_visual__primary {
    padding-left: 40px;
  }
}

.key_visual__title {
  -webkit-box-ordinal-group: 2;
      -ms-flex-order: 1;
          order: 1;
}
@media screen and (min-width: 768px) {
  .key_visual__title {
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1;
  }
}
.key_visual__title .pretitle {
  display: block;
  line-height: 1.4;
  font-weight: 600;
  font-size: 0.8125rem;
  margin-bottom: 10px;
}
@media screen and (min-width: 768px) {
  .key_visual__title .pretitle {
    font-size: 0.9375rem;
  }
}
@media screen and (min-width: 960px) {
  .key_visual__title .pretitle {
    font-size: 1.0625rem;
    margin-bottom: 16px;
  }
}
@media screen and (min-width: 1280px) {
  .key_visual__title .pretitle {
    font-size: 1.25rem;
    letter-spacing: 0.01em;
  }
}
.key_visual__title .title {
  font-family: "Montserrat", sans-serif;
  font-size: 1.5625rem;
  font-weight: 700;
  margin-top: 0.2em;
  margin-right: 10px;
  line-height: 1.2em;
  letter-spacing: 0.05em;
}
@media screen and (min-width: 768px) {
  .key_visual__title .title {
    font-size: 1.875rem;
  }
}
@media screen and (min-width: 1280px) {
  .key_visual__title .title {
    font-size: 2.375rem;
  }
}
.key_visual__title .subtitle {
  font-weight: 900;
}
@media screen and (min-width: 1280px) {
  .key_visual__title .subtitle {
    display: block;
  }
}

.key_visual__actions {
  -webkit-box-ordinal-group: 4;
      -ms-flex-order: 3;
          order: 3;
}
.key_visual__actions .link_btn {
  max-width: initial;
}
@media screen and (min-width: 768px) {
  .key_visual__actions .link_btn {
    max-width: 320px;
  }
}
@media screen and (min-width: 1280px) {
  .key_visual__actions .link_btn {
    max-width: 402px;
  }
}

.key_visual__secondary {
  -webkit-box-ordinal-group: 3;
      -ms-flex-order: 2;
          order: 2;
  margin-top: 20px;
  -webkit-box-flex: 1;
      -ms-flex: 1;
          flex: 1;
}
@media screen and (min-width: 768px) {
  .key_visual__secondary {
    margin-top: initial;
  }
}

.key_visual__image {
  max-width: 670px;
}

.key_visual__image_cell {
  display: block;
}
.key_visual__image_cell .img {
  width: 100%;
}
@media screen and (min-width: 768px) {
  .key_visual__image_cell {
    pointer-events: none;
  }
}

.whatis {
  padding-inline: 20px;
  margin-top: 26px;
}
@media screen and (min-width: 400px) {
  .whatis {
    padding-inline: 30px;
  }
}
@media screen and (min-width: 600px) {
  .whatis {
    padding-inline: 50px;
  }
}
@media screen and (min-width: 960px) {
  .whatis {
    padding-inline: 70px;
  }
}
@media screen and (min-width: 1440px) {
  .whatis {
    padding-inline: 130px;
  }
}
@media screen and (min-width: 600px) {
  .whatis {
    margin-top: clamp(26px, 4.3vw, 84px);
  }
}
@media screen and (min-width: 1280px) {
  .whatis {
    margin-top: 84px;
  }
}

.whatis__inner {
  max-width: 950px;
  margin-inline: auto;
}

.whatis__heading {
  font-size: 1.125rem;
  font-weight: 700;
}
@media screen and (min-width: 600px) {
  .whatis__heading {
    font-size: clamp(1.125rem, 2.8vw, 1.625rem);
  }
}
@media screen and (min-width: 1280px) {
  .whatis__heading {
    font-size: 1.625rem;
  }
}
.whatis__body {
  margin-top: 1.2em;
}

.whatis__read_textbox {
  line-height: 1.75;
  letter-spacing: -0.01em;
}
.whatis__read_textbox + .whatis__read_textbox {
  margin-top: 1.2em;
}

.project {
  padding-inline: 20px;
  margin-top: 40px;
  overflow: hidden;
}
@media screen and (min-width: 400px) {
  .project {
    padding-inline: 30px;
  }
}
@media screen and (min-width: 600px) {
  .project {
    padding-inline: 50px;
  }
}
@media screen and (min-width: 960px) {
  .project {
    padding-inline: 70px;
  }
}
@media screen and (min-width: 1440px) {
  .project {
    padding-inline: 130px;
  }
}
@media screen and (min-width: 960px) {
  .project {
    margin-top: 52px;
  }
}

.project__inner {
  max-width: 950px;
  margin-inline: auto;
}

.project__container {
  background-color: #F8F8F8;
  padding-block: 30px 36px;
  padding-inline: 20px;
  margin-inline: calc(50% - 50vw);
}
@media screen and (min-width: 600px) {
  .project__container {
    margin-inline: initial;
    padding-inline: 40px;
    padding-block: 6% 7%;
  }
}
@media screen and (min-width: 960px) {
  .project__container {
    padding-block: 52px;
  }
}

.project__container_inner {
  margin-inline: auto;
}
@media screen and (min-width: 600px) {
  .project__container_inner {
    max-width: 536px;
  }
}

.project__heading {
  font-size: 1.125rem;
  font-weight: 700;
  text-align: center;
}
@media screen and (min-width: 600px) {
  .project__heading {
    font-size: clamp(1.125rem, 2.8vw, 1.625rem);
  }
}
@media screen and (min-width: 960px) {
  .project__heading {
    font-size: 1.625rem;
  }
}
.project__body {
  margin-top: 16px;
}
@media screen and (min-width: 960px) {
  .project__body {
    margin-top: 22px;
  }
}

.project__practice {
  background-color: #fff;
  border: solid 2px #000;
  padding-block: 20px;
  padding-inline: 4px;
}
@media screen and (min-width: 600px) {
  .project__practice {
    padding-block: 28px;
  }
}
@media screen and (min-width: 1280px) {
  .project__practice {
    padding-block: 32px;
  }
}

.project__practice_list {
  width: -webkit-fit-content;
  width: -moz-fit-content;
  width: fit-content;
  margin-inline: auto;
  max-width: 400px;
}
.project__practice_list .item {
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: -0.04em;
}
.project__practice_list .item + .item {
  margin-top: 0.5em;
}
@media screen and (min-width: 600px) {
  .project__practice_list .item {
    font-size: clamp(0.9375rem, 2.2vw, 1.25rem);
  }
}
@media screen and (min-width: 1280px) {
  .project__practice_list .item {
    font-size: 1.25rem;
  }
}

.project__description {
  margin-top: 20px;
  width: 90%;
  margin-inline: auto;
}
.project__description br {
  display: none;
}
@media screen and (min-width: 600px) {
  .project__description {
    width: initial;
  }
}
@media screen and (min-width: 960px) {
  .project__description {
    text-align: center;
    margin-top: 30px;
  }
  .project__description br {
    display: inline;
  }
}
.recycle {
  padding-inline: 20px;
  margin-top: 40px;
}
@media screen and (min-width: 400px) {
  .recycle {
    padding-inline: 30px;
  }
}
@media screen and (min-width: 600px) {
  .recycle {
    padding-inline: 50px;
  }
}
@media screen and (min-width: 960px) {
  .recycle {
    padding-inline: 70px;
  }
}
@media screen and (min-width: 1440px) {
  .recycle {
    padding-inline: 130px;
  }
}
@media screen and (min-width: 600px) {
  .recycle {
    margin-top: clamp(40px, 6.67vw, 140px);
  }
}
@media screen and (min-width: 1280px) {
  .recycle {
    margin-top: 140px;
  }
}
.recycle:not(:has(+ #cta_link)) {
  -webkit-padding-after: 40px;
          padding-block-end: 40px;
}

.recycle__inner {
  max-width: 950px;
  margin-inline: auto;
}

.recycle__heading {
  font-size: 1.0625rem;
  font-weight: 700;
  text-align: center;
}
@media screen and (min-width: 600px) {
  .recycle__heading {
    font-size: clamp(1.125rem, 2.8vw, 1.5rem);
  }
}
@media screen and (min-width: 960px) {
  .recycle__heading {
    font-size: 1.5rem;
  }
}
.recycle__body {
  margin-top: 26px;
}
@media screen and (min-width: 960px) {
  .recycle__body {
    margin-top: 50px;
  }
}

.step__items {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  row-gap: 30px;
}
@media screen and (min-width: 600px) {
  .step__items {
    row-gap: 20px;
  }
}

.step__item {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  row-gap: 20px;
  background-color: #fff;
  padding-block: 28px 36px;
  padding-inline: 30px;
  -webkit-box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
          box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
}
@media screen and (min-width: 600px) {
  .step__item {
    -webkit-box-orient: horizontal;
    -webkit-box-direction: reverse;
        -ms-flex-direction: row-reverse;
            flex-direction: row-reverse;
    padding: initial;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
  }
}

.step__primary {
  -webkit-box-flex: 1;
      -ms-flex: 1;
          flex: 1;
}
@media screen and (min-width: 600px) {
  .step__primary {
    padding-block: 20px;
    padding-inline: 5%;
  }
}
@media screen and (min-width: 960px) {
  .step__primary {
    padding-inline: 50px;
    padding-top: initial;
  }
}

.step__title {
  font-family: "Montserrat", sans-serif;
  line-height: 1;
  width: -webkit-fit-content;
  width: -moz-fit-content;
  width: fit-content;
  margin-inline: auto;
}
@media screen and (min-width: 600px) {
  .step__title {
    width: initial;
  }
}
.step__title .text {
  display: inline-block;
  font-size: 1.25rem;
  font-weight: 400;
  margin-right: 8px;
  margin-left: -2.8em;
  letter-spacing: 0.01em;
}
@media screen and (min-width: 600px) {
  .step__title .text {
    margin-left: initial;
  }
}
@media screen and (min-width: 960px) {
  .step__title .text {
    font-size: 1.375rem;
    translate: 0 -2px;
  }
}
.step__title .order {
  font-weight: 600;
  font-size: 2.5rem;
}
@media screen and (min-width: 600px) {
  .step__title .order {
    font-size: 1.875rem;
    font-size: clamp(1.875rem, 5vw, 3.5rem);
  }
}
@media screen and (min-width: 1280px) {
  .step__title .order {
    font-size: 3.5rem;
  }
}

.step__text {
  font-size: 0.9375rem;
  margin-top: 18px;
  line-height: 1.56;
}
.step__text br {
  display: none;
}
@media screen and (min-width: 600px) {
  .step__text {
    margin-top: 10px;
  }
}
@media screen and (min-width: 960px) {
  .step__text {
    margin-top: 16px;
    font-size: 1.125rem;
  }
}
@media screen and (min-width: 1280px) {
  .step__text {
    padding-right: 10%;
  }
  .step__text br {
    display: inline;
  }
}
.step__dl {
  margin-top: 12px;
  font-size: 0.8125rem;
}
@media screen and (min-width: 960px) {
  .step__dl {
    font-size: 0.9375rem;
  }
}

.step__dl_data {
  margin-top: 4px;
  line-height: 1.4;
}

@media screen and (min-width: 600px) {
  .step_secondary {
    width: 25%;
    max-width: 160px;
  }
}
.step_secondary .image {
  height: auto;
  aspect-ratio: 1/0.75;
  overflow: hidden;
  position: relative;
}
.step_secondary .image .img {
  width: inherit;
  height: inherit;
  -o-object-fit: cover;
     object-fit: cover;
  -o-object-position: center;
     object-position: center;
  position: absolute;
  inset: 0;
  margin: auto;
}
@media screen and (min-width: 600px) {
  .step_secondary .image {
    aspect-ratio: 160/224;
    max-width: 160px;
  }
}

.cta_link {
  margin-top: 40px;
}
@media screen and (min-width: 600px) {
  .cta_link {
    margin-top: 10%;
  }
}
@media screen and (min-width: 1280px) {
  .cta_link {
    margin-top: 125px;
  }
}

.cta_link {
  padding-inline: 20px;
  padding-block: 30px;
  background-color: #F5F5F5;
}
@media screen and (min-width: 400px) {
  .cta_link {
    padding-inline: 30px;
  }
}
@media screen and (min-width: 600px) {
  .cta_link {
    padding-inline: 50px;
  }
}
@media screen and (min-width: 960px) {
  .cta_link {
    padding-inline: 70px;
  }
}
@media screen and (min-width: 1440px) {
  .cta_link {
    padding-inline: 130px;
  }
}
@media screen and (min-width: 600px) {
  .cta_link {
    padding-block: 60px;
  }
}
@media screen and (min-width: 960px) {
  .cta_link {
    padding-block: 80px;
  }
}

@media screen and (min-width: 600px) {
  .cta_link__btn {
    text-align: center;
  }
}
.cta_link__btn .link_btn {
  max-width: 100%;
}
@media screen and (min-width: 600px) {
  .cta_link__btn .link_btn {
    max-width: 402px;
    font-size: 0.9375rem;
  }
}